Gorsky effect

On another hand, migration energies calculated in Ref. [6] differ significantly from the isothermal residual resistance recovery measurements obtained by authors in Refs. [5] (0.45 eV), [10] (0.43 eV) and from the Gorsky effect determination with self-diffusion of H in Lu [11] (0.575 eV). Why does such a discrepancy exist ... 

Hydrogen has very large diffusion mobility it is accumulated not only in local defects and hydrides but also in zones of stretching mechanical stresses (the Gorski effect [1]). 

Dq /Dq for f c.c. metals is usually close to s/2 (as predicted by the classical theory), the activation energy for deuterium in a number of f.c.c. metals appears to be lower than that for H. For example, the activation energy for deuterium in Pd derived from the Gorsky effect measurements [50] is 0.206 eV (-220-350 K). This value should be compared to that for H in Pd, = 0.23 eV. Because of the inequality the diffusion coefficient of the heavier isotope becomes high-... 

K. Kandasamy, F. A. Lewis, Important Gorsky effect influences on diffusion coefficients in metal-hydrogen systems, Int.J. Hydrogen Energy 1999, 24, 763-769. 

The conclusion that the reorientation relaxation is of the Snoek type is strongly supported by observations of a second relaxation process known as the Gorsky effect. This relaxation provides an entirely different perspective on the interstitial population, since it focuses on the H-interstitial as a dilatation center rather than as an elastic... 

G. Schaumann, J. Volkl and G. Alefeld, The Diffusion Coefficients of Hydrogen and Deuterium in Vanadium, Niobium and Tantalum by Gorsky-Effect Measurements, Phys. Stat. Sol. 42 401 (1970). 

R. Cantelli, F. M. Mazzolai and M. Nuovo, Internal Friction due to Long-Range Diffusion of Hydrogen in Niobium (Gorsky Effect), Phys. Stat. Sol. 34 597 (1969). 

A. H. Verbruggen, R. C. van den Heuvel, R. Griessen and H.-U. Kiinzi, Gorsky Effect Measurements on Amorphous Pd QSi2oH, between 290 and 490K, Scripta Metall. 19 323 (1985). 

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